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An experimental and numerical study on nonlinear impact responses of steel-plated structures in an Arctic environment

Kim, KJ; Lee, JH; Park, DK; Jung, BG; Han, X; Paik, JK; (2016) An experimental and numerical study on nonlinear impact responses of steel-plated structures in an Arctic environment. International Journal of Impact Engineering , 93 pp. 99-115. 10.1016/j.ijimpeng.2016.02.013. Green open access

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Abstract

Ships and offshore platforms that operate in Arctic regions at low temperatures are likely subjected to impact loads that arise from collisions with icebergs. The aim of this paper was to examine the nonlinear impact response of steel-plated structures in an Arctic environment. In addition to material tensile tests for characterisation of the mechanical properties of polar-class high-tensile steel of grade DH36, an experimental study was undertaken in a dropped-object test facility on steel-plated structure models under impact loads and at low temperatures equivalent to those in Arctic regions. LS-DYNA nonlinear finite element computations were also performed for the corresponding test models. We conclude that nonlinear finite element analyses are useful in the analysis of the nonlinear impact structural responses involving yielding, crushing and brittle fracture at low temperatures as long as the modelling techniques are adequate. The conclusions and insights developed in this paper should be useful in the safety design of ships and offshore platforms intended for operation in Arctic regions.

Type: Article
Title: An experimental and numerical study on nonlinear impact responses of steel-plated structures in an Arctic environment
Open access status: An open access version is available from UCL Discovery
DOI: 10.1016/j.ijimpeng.2016.02.013
Publisher version: http://doi.org/10.1016/j.ijimpeng.2016.02.013
Language: English
Additional information: Copyright © 2016 Elsevier Ltd. All rights reserved. This manuscript version is made available under a Creative Commons Attribution Non-commercial Non-derivative 4.0 International license (CC BY-NC-ND 4.0). This license allows you to share, copy, distribute and transmit the work for personal and non-commercial use providing author and publisher attribution is clearly stated. Further details about CC BY licenses are available at https://creativecommons.org/licenses/. Access may be initially restricted by the publisher.
Keywords: Nonlinear impact response; Arctic environment; Collisions with iceberg; Low temperature; Accidental limit state design
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Mechanical Engineering
URI: https://discovery.ucl.ac.uk/id/eprint/1535312
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